Related Experiment Video
Updated: May 23, 2025
Gene-environment Interaction Models to Unmask Susceptibility Mechanisms in Parkinson's Disease
Published on: January 7, 2014
Genetic evidence of methotrexate's protective role against Parkinson's disease: A Mendelian randomization and
Fang-Shu Zou1, Min-Ying Liu1, Xiao-Na Ma1
1State Key Laboratory of Traditional Chinese Medicine Syndrome, The First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou 510405, China; Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China; Guangdong Clinical Research Academy of Chinese Medicine, Guangzhou, China.
Background:
Recent research has indicated a possible link between the use of methotrexate (MTX) and a heightened risk of developing Parkinson's disease (PD). Nevertheless, the causal relationship between MTX and PD continues to be unclear. This study aimed to explore the potential causal impact of MTX use on the risk of PD by employing two-sample Mendelian randomization (MR) alongside co-localization (COLOC) analysis.
Objective:
The objective of this research is to explore the potential causal relationship between the use of methotrexate and the likelihood of developing Parkinson's disease, employing a two-sample Mendelian randomization (TSMR) methodology.
Methods:
Separate datasets concerning the genetic tools associated with MTX and PD were acquired from the Genome-Wide Association Study (GWAS) database. A series of MR-related statistical analyses were executed, such as inverse variance weighting (IVW), weighted median (WM 1), weighted mode (WM 2), and MR-Egger regression techniques. Furthermore, we carried out co-localization analyses utilizing the GWAS summary statistics for both MTX and PD in order to comprehensively evaluate the causal relationship between MTX and the risk of developing PD.
Results:
The MR analysis revealed a positive causal connection between methotrexate (MTX) and a decreased likelihood of developing Parkinson's disease (PD). In particular, the IVW method showed a negative association between MTX use and PD incidence, indicating that MTX is linked to a lower risk of PD (OR = 4.78E-11, 95 % CI = 1.06E-19 to 2.16E-02, p = 1.94E-08). Similar findings were acquired through the WM 1, WM 2, and MR-Egger methodologies. Additionally, COLOC analysis indicated a shared genetic variant between MTX and PD at a specific locus.
Conclusion:
The results from this joint MR and COLOC research indicate a possible causal link between the use of methotrexate and the likelihood of developing Parkinson's disease. Nonetheless, further research and confirmation of these results, as well as an examination of potential mechanisms, are necessary.
Insights
Methotrexate (MTX) use may be linked to a reduced risk of Parkinson's disease (PD). This study used Mendelian randomization and co-localization to investigate the potential causal relationship between MTX and PD.
Area of Science:
- Neuroscience
- Pharmacology
- Genetics
Background:
- Emerging research suggests a potential association between methotrexate (MTX) use and an increased risk of Parkinson's disease (PD).
- The precise causal link between MTX and PD remains uncertain, necessitating further investigation.
Purpose of the Study:
- To investigate the potential causal effect of methotrexate (MTX) on the risk of developing Parkinson's disease (PD).
- To employ two-sample Mendelian randomization (TSMR) and co-localization (COLOC) analyses to clarify the MTX-PD relationship.
Main Methods:
- Acquired genome-wide association study (GWAS) data for genetic variants associated with MTX and PD.
- Utilized various Mendelian randomization (MR) methods, including inverse variance weighting (IVW), weighted median, and MR-Egger regression.
- Performed co-localization (COLOC) analysis on GWAS summary statistics for MTX and PD to assess shared genetic influences.
Main Results:
- Mendelian randomization analysis indicated a protective association between MTX use and PD risk.
- The IVW method revealed a statistically significant negative association between MTX and PD incidence (OR=4.78E-11, P=1.94E-08).
- Co-localization analysis suggested a shared genetic locus between MTX and PD, supporting a potential biological link.
Conclusions:
- The combined MR and COLOC analyses suggest a potential causal relationship where MTX use may reduce the risk of Parkinson's disease.
- Further research is warranted to confirm these findings and elucidate the underlying biological mechanisms.
More Related Videos
13:47Lentiviral Vector Platform for the Efficient Delivery of Epigenome-editing Tools into Human Induced Pluripotent Stem Cell-derived Disease Models
Published on: March 29, 2019
05:38Behavioral Assessments of Spontaneous Locomotion in a Murine MPTP-induced Parkinson's Disease Model
Published on: January 7, 2019
Related Concept Videos
01:24Parkinson's Disease: Treatment
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
01:15Parkinson's Disease: Overview
02:59Animal Mitochondrial Genetics
01:29Drugs Affecting Neurotransmitter Synthesis
01:28Human Genetics
The complex relationship between genetics and psychology is observable through common biological components such...